Environment details (Put x in the checkbox along with the information)

[x] Operating System: Arch, GNU/Linux
[x] Desktop Environment:
[x] Terminal Emulator: st
[x] Shell: zsh, sh, bash
[ ] Custom desktop opener (if applicable):
[x] Issue exists on nnn master

Exact steps to reproduce the issue

1. Open nnn
2. Rename any entry (^R)
3. Type in a new name that is longer than the terminal width. Files are correctly renamed to any practical length, but input longer than $COLUMNS is not visible in the prompt. I suggest that the input prompt displays the end of the input string, if it is longer than the terminal width.

nnn rocks!